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Osa Weather (Next 3 days): The snow forecast for Osa is: Moderate rain (total 10.0mm), heaviest on Tue morning. Freeze-thaw conditions (max 8°C on Thu morning, min -4°C on Tue night). Winds decreasing (near gales from the W on Tue morning, light winds from the W by Wed night).
Osa Weather (Days 4-6): Light rain (total 2.0mm), mostly falling on Thu night. Very mild (max 11°C on Sun morning, min 2°C on Thu night). Winds decreasing (fresh winds from the W on Thu night, calm by Sat afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 1 |  | ||||
| Bottom Lift: | 2 | |
Latest snow reports near Osa:
Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | Saturday 17 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | | |  |  | | | | | |  | |
light rain | rain shwrs | cloudy | some clouds | clear | clear | some clouds | cloudy | light rain | rain shwrs | clear | clear | some clouds | clear | clear | clear | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
4 | 5 | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | — | |
max °C | 3 | 5 | 2 | -2 | 1 | 1 | 1 | 8 | 8 | 6 | 7 | 7 | 2 | 9 | 9 | 4 |
min °C | 1 | 3 | 0 | -4 | -1 | -1 | -1 | 3 | 7 | 2 | 4 | 3 | 2 | 6 | 4 | 3 |
-5 | -4 | -7 | -13 | -8 | -6 | -6 | -2 | 2 | -4 | -1 | 0 | -1 | 4 | 3 | 0 | |
88 | 87 | 79 | 83 | 67 | 67 | 78 | 68 | 82 | 89 | 56 | 36 | 31 | 28 | 29 | 41 | |
1150 | 1300 | 800 | 200 | 500 | 750 | 800 | 1700 | 1800 | 1450 | 1400 | 1800 | 1900 | 1900 | 2000 | 2150 | |
 | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — |
 | — | — | 5:20 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — |
Moderate rain (total 10.0mm), heaviest on Tue morning. Freeze-thaw conditions (max 8°C on Thu morning, min -4°C on Tue night). Winds decreasing (near gales from the W on Tue morning, light winds from the W by Wed night).
Light rain (total 2.0mm), mostly falling on Thu night. Very mild (max 11°C on Sun morning, min 2°C on Thu night). Winds decreasing (fresh winds from the W on Thu night, calm by Sat afternoon).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 4 cm |
| Last snowfall: | 11 Jan 2026 |
| Snow Alerts | Create Alert |
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.4 | Powder days Fresh snow, limited sun, any wind. |
0.4 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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